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Lennox vs Trane: heat pump ratings compared

Against heat pumps of the same size and type, a typical Lennox model beats 48% and a typical Trane model 50%. Trane rates slightly higher overall.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

Lennox

48%

of similar heat pumps beaten by its typical model

About average

331 models listed

Trane

50%

of similar heat pumps beaten by its typical model

About average

363 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • Efficiency on a 5°F dayCOP at 5°FLennox: Beats 46%Trane: Beats 68%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FLennox: Beats 43%Trane: Beats 43%
  • Winter-long heating efficiencyHSPF2Lennox: Beats 44%Trane: Beats 36%
  • Summer-long cooling efficiencySEER2Lennox: Beats 45%Trane: Beats 40%
  • Hot-day cooling efficiencyEER2Lennox: Beats 57%Trane: Beats 66%

Average (50%)Dashed outline: the other brand, for comparison

Want ranks, distributions per size class and cold-weather curves? Switch to Advanced

Rebate standards

Share of each brand’s models that meet the level. Programs can have other rules too.

  • CEE 2025

    Lennox
    44%
    Trane
    39%

  • Xcel CC

    Lennox
    36%
    Trane
    26%

  • CEE Advanced

    Lennox
    3%
    Trane
    3%

  • ENERGY STAR CC

    Lennox
    30%
    Trane
    18%

Top cold-climate picks, ductless 2 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

Showing Ductless, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

Lennox

  1. 1A-VHP24SA-1with ductless indoor unit B-VHP24CA-1Lennox (sold as Comfort Aire)2 tons · 23,400 Btu/h · DuctlessKeeps 95% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    95% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.23 (COP at 5°F)
    Great
    Seasonal efficiency
    11.6 (HSPF2)
    Top 10%
    89.4score / 100
  2. 2A-KZP24SA-1with ductless indoor unit B-KZP24SA-1Lennox (sold as Comfort Aire)2 tons · 24,000 Btu/h · DuctlessKeeps 83% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    83% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    11.0 (HSPF2)
    Great
    81.2score / 100
  3. 3MMLD020S6M-1PLennox2 tons · 21,000 Btu/h · DuctlessKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.95 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    10.5 (HSPF2)
    Great
    71.3score / 100

Trane

  1. 1M5THS2324A11NAAwith ductless indoor unit M5MHWUN24A1N0AATrane (sold as RunTru)Also listed as M5THS2324A11NA2 tons · 23,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Below the middle
    37.7score / 100
  2. 2M5THS1924A11NAAwith ductless indoor unit M5MHWUN24A1N0AATrane (sold as RunTru)Also listed as M5THS1924A11NA2 tons · 23,000 Btu/h · DuctlessKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.80 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Below the middle
    37.7score / 100

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

Next steps

The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.

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